3561540723003 has 16 divisors (see below), whose sum is σ = 5000619502080. Its totient is φ = 2248509505824.

The previous prime is 3561540722923. The next prime is 3561540723011. The reversal of 3561540723003 is 3003270451653.

It is not a de Polignac number, because 3561540723003 - 2¹² = 3561540718907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3561540723053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12140376 + ... + 12430277.

It is an arithmetic number, because the mean of its divisors is an integer number (312538718880).

Almost surely, 2^{3561540723003} is an apocalyptic number.

3561540723003 is a deficient number, since it is larger than the sum of its proper divisors (1439078779077).

3561540723003 is a wasteful number, since it uses less digits than its factorization.

3561540723003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24573218.

The product of its (nonzero) digits is 226800, while the sum is 39.

The spelling of 3561540723003 in words is "three trillion, five hundred sixty-one billion, five hundred forty million, seven hundred twenty-three thousand, three".